/* Getopt for GNU.
NOTE: getopt is now part of the C library, so if you don't know what
"Keep this file name-space clean" means, talk to roland@gnu.ai.mit.edu
before changing it!
Copyright (C) 1987, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97
Free Software Foundation, Inc.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02110-1301, USA. */
/* This tells Alpha OSF/1 not to define a getopt prototype in <stdio.h>.
Ditto for AIX 3.2 and <stdlib.h>. */
#ifndef _NO_PROTO
#define _NO_PROTO
#endif
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#ifndef HAVE_GETOPT_LONG
#if !defined (__STDC__) || !__STDC__
/* This is a separate conditional since some stdc systems
reject `defined (const)'. */
#ifndef const
#define const
#endif
#endif
#include <stdio.h>
/* Comment out all this code if we are using the GNU C Library, and are not
actually compiling the library itself. This code is part of the GNU C
Library, but also included in many other GNU distributions. Compiling
and linking in this code is a waste when using the GNU C library
(especially if it is a shared library). Rather than having every GNU
program understand `configure --with-gnu-libc' and omit the object files,
it is simpler to just do this in the source for each such file. */
#define GETOPT_INTERFACE_VERSION 2
#if !defined (_LIBC) && defined (__GLIBC__) && __GLIBC__ >= 2
#include <gnu-versions.h>
#if _GNU_GETOPT_INTERFACE_VERSION == GETOPT_INTERFACE_VERSION
#define ELIDE_CODE
#endif
#endif
#ifndef ELIDE_CODE
/* This needs to come after some library #include
to get __GNU_LIBRARY__ defined. */
#ifdef __GNU_LIBRARY__
/* Don't include stdlib.h for non-GNU C libraries because some of them
contain conflicting prototypes for getopt. */
#include <stdlib.h>
#include <unistd.h>
#endif /* GNU C library. */
#ifdef VMS
#include <unixlib.h>
#if HAVE_STRING_H - 0
#include <string.h>
#endif
#endif
#if defined (WIN32) && !defined (__CYGWIN32__)
/* It's not Unix, really. See? Capital letters. */
#include <windows.h>
#define getpid() GetCurrentProcessId()
#endif
#ifndef _
/* This is for other GNU distributions with internationalized messages.
When compiling libc, the _ macro is predefined. */
#ifdef HAVE_LIBINTL_H
# include <libintl.h>
# define _(msgid) gettext (msgid)
#else
# define _(msgid) (msgid)
#endif
#endif
/* This version of `getopt' appears to the caller like standard Unix `getopt'
but it behaves differently for the user, since it allows the user
to intersperse the options with the other arguments.
As `getopt' works, it permutes the elements of ARGV so that,
when it is done, all the options precede everything else. Thus
all application programs are extended to handle flexible argument order.
Setting the environment variable POSIXLY_CORRECT disables permutation.
Then the behavior is completely standard.
GNU application programs can use a third alternative mode in which
they can distinguish the relative order of options and other arguments. */
#include "getopt.h"
/* For communication from `getopt' to the caller.
When `getopt' finds an option that takes an argument,
the argument value is returned here.
Also, when `ordering' is RETURN_IN_ORDER,
each non-option ARGV-element is returned here. */
char *optarg = NULL;
/* Index in ARGV of the next element to be scanned.
This is used for communication to and from the caller
and for communication between successive calls to `getopt'.
On entry to `getopt', zero means this is the first call; initialize.
When `getopt' returns -1, this is the index of the first of the
non-option elements that the caller should itself scan.
Otherwise, `optind' communicates from one call to the next
how much of ARGV has been scanned so far. */
/* 1003.2 says this must be 1 before any call. */
int optind = 1;
/* Formerly, initialization of getopt depended on optind==0, which
causes problems with re-calling getopt as programs generally don't
know that. */
int __getopt_initialized = 0;
/* The next char to be scanned in the option-element
in which the last option character we returned was found.
This allows us to pick up the scan where we left off.
If this is zero, or a null string, it means resume the scan
by advancing to the next ARGV-element. */
static char *nextchar;
/* Callers store zero here to inhibit the error message
for unrecognized options. */
int opterr = 1;
/* Set to an option character which was unrecognized.
This must be initialized on some systems to avoid linking in the
system's own getopt implementation. */
int optopt = '?';
/* Describe how to deal with options that follow non-option ARGV-elements.
If the caller did not specify anything,
the default is REQUIRE_ORDER if the environment variable
POSIXLY_CORRECT is defined, PERMUTE otherwise.
REQUIRE_ORDER means don't recognize them as options;
stop option processing when the first non-option is seen.
This is what Unix does.
This mode of operation is selected by either setting the environment
variable POSIXLY_CORRECT, or using `+' as the first character
of the list of option characters.
PERMUTE is the default. We permute the contents of ARGV as we scan,
so that eventually all the non-options are at the end. This allows options
to be given in any order, even with programs that were not written to
expect this.
RETURN_IN_ORDER is an option available to programs that were written
to expect options and other ARGV-elements in any order and that care about
the ordering of the two. We describe each non-option ARGV-element
as if it were the argument of an option with character code 1.
Using `-' as the first character of the list of option characters
selects this mode of operation.
The special argument `--' forces an end of option-scanning regardless
of the value of `ordering'. In the case of RETURN_IN_ORDER, only
`--' can cause `getopt' to return -1 with `optind' != ARGC. */
static enum
{
REQUIRE_ORDER, PERMUTE, RETURN_IN_ORDER
} ordering;
/* Value of POSIXLY_CORRECT environment variable. */
static char *posixly_correct;
#ifdef __GNU_LIBRARY__
/* We want to avoid inclusion of string.h with non-GNU libraries
because there are many ways it can cause trouble.
On some systems, it contains special magic macros that don't work
in GCC. */
#include <string.h>
#define my_index strchr
#else
/* Avoid depending on library functions or files
whose names are inconsistent. */
char *getenv ();
static char *
my_index (str, chr)
const char *str;
int chr;
{
while (*str)
{
if (*str == chr)
return (char *) str;
str++;
}
return 0;
}
/* If using GCC, we can safely declare strlen this way.
If not using GCC, it is ok not to declare it. */
#ifdef __GNUC__
/* Note that Motorola Delta 68k R3V7 comes with GCC but not stddef.h.
That was relevant to code that was here before. */
#if !defined (__STDC__) || !__STDC__
/* gcc with -traditional declares the built-in strlen to return int,
and has done so at least since version 2.4.5. -- rms. */
extern int strlen (const char *);
#else
#if HAVE_STRING_H
#include <string.h>
#endif
#endif /* not __ST
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算、文件操作、数据分析和网络编程等。Python社区提供了大量的第三方库,如NumPy、Pandas和Requests,极大地丰富了Python的应用领域,从数据科学到Web开发。Python库的丰富性是Python成为最受欢迎的编程语言之一的关键原因之一。这些库不仅为初学者提供了快速入门的途径,而且为经验丰富的开发者提供了强大的工具,以高效率、高质量地完成复杂任务。例如,Matplotlib和Seaborn库在数据可视化领域内非常受欢迎,它们提供了广泛的工具和技术,可以创建高度定制化的图表和图形,帮助数据科学家和分析师在数据探索和结果展示中更有效地传达信息。
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which-2.20.tar.gz (41个子文件)
which-2.20
mdate-sh 3KB
stamp-vti 97B
maintMakefile.in 8KB
configure 192KB
version.texi 97B
README 4KB
posixstat.h 4KB
README.alias 755B
getopt.c 30KB
aclocal.m4 35KB
EXAMPLES 4KB
config.h.in 3KB
getopt.h 4KB
NEWS 4KB
which.1 4KB
AUTHORS 245B
configure.ac 1KB
bash.h 736B
getopt1.c 5KB
bash.c 12KB
which.c 16KB
Makefile.in 34KB
sys.h 982B
INSTALL 8KB
install-sh 13KB
acinclude.m4 2KB
which.info 7KB
tilde
bashansi.h 1KB
tilde.h 3KB
README 906B
Makefile.in 12KB
xmalloc.h 1KB
shell.c 2KB
tilde.c 13KB
Makefile.am 205B
ansi_stdlib.h 1KB
Makefile.am 928B
COPYING 34KB
which.texinfo 8KB
missing 11KB
depcomp 3KB
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